Since it’s Valentine’s Day, I thought I would forego the flowery Happy Valentine’s Day post and instead take a moment to write a letter to my nieces who are either at the beginning or end of their wedding planning journey.Dear Katie and Sara,I want you to know that what I’m about to say isn’t meant to discourage you in any way. And I want you both to be exuberantly happy in your upcoming marriages. But before you walk down the aisle, I want to share a few things I, your not so old and fuddy duddy Aunt, has learned in my almost four years of marriage. And yes, I realize that four years doesn’t make me an expert or anything, but think of it as your future self offering advice to your bride self right now. OK? Ok.Girls let’s talk. Right now you’re probably frazzled by all those wedding details, but…